#include <bits/stdc++.h>
using namespace std;
int besthub(int R, int L, int a[], long long B)
{
int l=0,r=R,m,x,y;
bool ok;
//cout<<L<<"!!\n";
long long cur;
while (l<r)
{
ok=0;
m=l+(r-l)/2+1;
//cout<<m<<"!\n";
cur=0;
x=0;y=m-1;
for (int i=0;i<=y/2;++i)
cur-=a[i];
for (int i=y/2+1;i<m;++i)
cur+=a[i];
//cout<<cur<<" ";
// cout<<1LL*a[(x+y)/2]*((m-1)/2+1)<<" "<<-1LL*a[(x+y)/2]*(m-(m-1)/2-1)<<"\n";
//cout<<cur+1LL*a[(x+y)/2]*((m-1)/2+1)-1LL*a[(x+y)/2]*(m-(m-1)/2-1)<<" ";
if (cur+1LL*a[(x+y)/2]*((m-1)/2+1)-1LL*a[(x+y)/2]*(m-(m-1)/2-1)<=B)
ok=1;
for (++x,++y;y<R;++x,++y)
{
//cout<<"\n"<<x<<" "<<y<<"\n";
cur+=a[x-1];
cur+=a[y];
cur-=a[(x+y)/2]*2;
// cout<<"+ "<<a[x-1]<<"\n";
// cout<<"+ "<<a[y]<<"\n";
// cout<<"- 2*"<<a[(x+y)/2]<<"\n";
if (cur+1LL*a[(x+y)/2]*((m-1)/2+1)-1LL*a[(x+y)/2]*(m-(m-1)/2-1)<=B)
ok=1;
//cout<<cur<<" ";
//cout<<cur+1LL*a[(x+y)/2]*((m-1)/2+1)-1LL*a[(x+y)/2]*(m-(m-1)/2-1)<<" ";
}
//cout<<"\n";
if (ok)
l=m;
else
r=m-1;
}
return l;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
204 KB |
Output is correct |
| 3 |
Correct |
1 ms |
256 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
1 ms |
204 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
204 KB |
Output is correct |
| 2 |
Correct |
1 ms |
204 KB |
Output is correct |
| 3 |
Correct |
1 ms |
204 KB |
Output is correct |
| 4 |
Correct |
0 ms |
204 KB |
Output is correct |
| 5 |
Correct |
0 ms |
204 KB |
Output is correct |
| 6 |
Correct |
1 ms |
204 KB |
Output is correct |
| 7 |
Correct |
1 ms |
204 KB |
Output is correct |
| 8 |
Correct |
1 ms |
204 KB |
Output is correct |
| 9 |
Correct |
1 ms |
204 KB |
Output is correct |
| 10 |
Correct |
1 ms |
204 KB |
Output is correct |
| 11 |
Correct |
1 ms |
204 KB |
Output is correct |
| 12 |
Correct |
1 ms |
204 KB |
Output is correct |
| 13 |
Correct |
1 ms |
204 KB |
Output is correct |
| 14 |
Correct |
1 ms |
204 KB |
Output is correct |
| 15 |
Correct |
1 ms |
204 KB |
Output is correct |
| 16 |
Correct |
0 ms |
204 KB |
Output is correct |
| 17 |
Correct |
1 ms |
204 KB |
Output is correct |
| 18 |
Correct |
1 ms |
204 KB |
Output is correct |
| 19 |
Correct |
1 ms |
204 KB |
Output is correct |
| 20 |
Correct |
1 ms |
204 KB |
Output is correct |
| 21 |
Correct |
1 ms |
204 KB |
Output is correct |
| 22 |
Correct |
1 ms |
204 KB |
Output is correct |
| 23 |
Correct |
1 ms |
204 KB |
Output is correct |
| 24 |
Correct |
1 ms |
204 KB |
Output is correct |
| 25 |
Correct |
0 ms |
204 KB |
Output is correct |
| 26 |
Correct |
1 ms |
204 KB |
Output is correct |
| 27 |
Correct |
1 ms |
300 KB |
Output is correct |
| 28 |
Correct |
1 ms |
204 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
300 KB |
Output is correct |
| 2 |
Correct |
1 ms |
204 KB |
Output is correct |
| 3 |
Correct |
1 ms |
204 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
1 ms |
204 KB |
Output is correct |
| 6 |
Correct |
1 ms |
204 KB |
Output is correct |
| 7 |
Correct |
1 ms |
204 KB |
Output is correct |
| 8 |
Correct |
1 ms |
204 KB |
Output is correct |
| 9 |
Correct |
1 ms |
204 KB |
Output is correct |
| 10 |
Correct |
1 ms |
204 KB |
Output is correct |
| 11 |
Correct |
1 ms |
204 KB |
Output is correct |
| 12 |
Correct |
1 ms |
204 KB |
Output is correct |
| 13 |
Correct |
1 ms |
304 KB |
Output is correct |
| 14 |
Correct |
1 ms |
204 KB |
Output is correct |
| 15 |
Correct |
1 ms |
204 KB |
Output is correct |
| 16 |
Correct |
1 ms |
204 KB |
Output is correct |
| 17 |
Correct |
1 ms |
308 KB |
Output is correct |
| 18 |
Correct |
1 ms |
304 KB |
Output is correct |
| 19 |
Correct |
1 ms |
204 KB |
Output is correct |
| 20 |
Correct |
1 ms |
204 KB |
Output is correct |
| 21 |
Correct |
1 ms |
332 KB |
Output is correct |
| 22 |
Correct |
1 ms |
332 KB |
Output is correct |
| 23 |
Correct |
1 ms |
332 KB |
Output is correct |
| 24 |
Correct |
1 ms |
332 KB |
Output is correct |
| 25 |
Correct |
1 ms |
312 KB |
Output is correct |
| 26 |
Correct |
1 ms |
332 KB |
Output is correct |
| 27 |
Correct |
1 ms |
320 KB |
Output is correct |
| 28 |
Correct |
1 ms |
332 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
4 ms |
460 KB |
Output is correct |
| 2 |
Correct |
5 ms |
440 KB |
Output is correct |
| 3 |
Correct |
22 ms |
1692 KB |
Output is correct |
| 4 |
Correct |
16 ms |
1740 KB |
Output is correct |
| 5 |
Correct |
8 ms |
844 KB |
Output is correct |
| 6 |
Correct |
9 ms |
844 KB |
Output is correct |
| 7 |
Correct |
18 ms |
1380 KB |
Output is correct |
| 8 |
Correct |
15 ms |
1356 KB |
Output is correct |
| 9 |
Correct |
8 ms |
716 KB |
Output is correct |
| 10 |
Correct |
8 ms |
696 KB |
Output is correct |
| 11 |
Correct |
16 ms |
1672 KB |
Output is correct |
| 12 |
Correct |
16 ms |
1732 KB |
Output is correct |
| 13 |
Correct |
9 ms |
844 KB |
Output is correct |
| 14 |
Correct |
9 ms |
844 KB |
Output is correct |
| 15 |
Correct |
12 ms |
1340 KB |
Output is correct |
| 16 |
Correct |
12 ms |
1356 KB |
Output is correct |
| 17 |
Correct |
16 ms |
1612 KB |
Output is correct |
| 18 |
Correct |
14 ms |
1580 KB |
Output is correct |
| 19 |
Correct |
15 ms |
1612 KB |
Output is correct |
| 20 |
Correct |
15 ms |
1612 KB |
Output is correct |
